Date: Wed, 27 Sep 2023 16:24:28 GMT From: Zhenlei Huang <zlei@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: f549e22901b3 - main - ip_mroute: Fix sysctl knobs Message-ID: <202309271624.38RGOSFV076702@gitrepo.freebsd.org>
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The branch main has been updated by zlei: URL: https://cgit.FreeBSD.org/src/commit/?id=f549e22901b3a391c76659bee55802b1214112fd commit f549e22901b3a391c76659bee55802b1214112fd Author: Zhenlei Huang <zlei@FreeBSD.org> AuthorDate: 2023-09-27 16:23:22 +0000 Commit: Zhenlei Huang <zlei@FreeBSD.org> CommitDate: 2023-09-27 16:23:22 +0000 ip_mroute: Fix sysctl knobs The loader tunable `net.inet.ip.mfchashsize` does not have corresponding sysctl MIB entry. Just add it. While here, the sysctl variable `net.inet.pim.squelch_wholepkt` is actually a loader tunable. Add sysctl flag CTLFLAG_TUN to it so that `sysctl -T` will report it correctly. Reviewed by: kp Fixes: 443fc3176dee Introduce a number of changes to the MROUTING code MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D41997 --- sys/netinet/ip_mroute.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/sys/netinet/ip_mroute.c b/sys/netinet/ip_mroute.c index 2444fd9686f7..cda5f160e8fb 100644 --- a/sys/netinet/ip_mroute.c +++ b/sys/netinet/ip_mroute.c @@ -172,7 +172,9 @@ VNET_DEFINE_STATIC(u_long, mfchash); ((g).s_addr >> 20) ^ ((g).s_addr >> 10) ^ (g).s_addr) & V_mfchash) #define MFCHASHSIZE 256 -static u_long mfchashsize; /* Hash size */ +static u_long mfchashsize = MFCHASHSIZE; /* Hash size */ +SYSCTL_ULONG(_net_inet_ip, OID_AUTO, mfchashsize, CTLFLAG_RDTUN, + &mfchashsize, 0, "IPv4 Multicast Forwarding Table hash size"); VNET_DEFINE_STATIC(u_char *, nexpire); /* 0..mfchashsize-1 */ #define V_nexpire VNET(nexpire) VNET_DEFINE_STATIC(LIST_HEAD(mfchashhdr, mfc)*, mfchashtbl); @@ -226,7 +228,7 @@ SYSCTL_VNET_PCPUSTAT(_net_inet_pim, PIMCTL_STATS, stats, struct pimstat, pimstat, "PIM Statistics (struct pimstat, netinet/pim_var.h)"); static u_long pim_squelch_wholepkt = 0; -SYSCTL_ULONG(_net_inet_pim, OID_AUTO, squelch_wholepkt, CTLFLAG_RW, +SYSCTL_ULONG(_net_inet_pim, OID_AUTO, squelch_wholepkt, CTLFLAG_RWTUN, &pim_squelch_wholepkt, 0, "Disable IGMP_WHOLEPKT notifications if rendezvous point is unspecified"); @@ -2817,18 +2819,12 @@ ip_mroute_modevent(module_t mod, int type, void *unused) return (EINVAL); } - mfchashsize = MFCHASHSIZE; - if (TUNABLE_ULONG_FETCH("net.inet.ip.mfchashsize", &mfchashsize) && - !powerof2(mfchashsize)) { + if (!powerof2(mfchashsize)) { printf("WARNING: %s not a power of 2; using default\n", "net.inet.ip.mfchashsize"); mfchashsize = MFCHASHSIZE; } - pim_squelch_wholepkt = 0; - TUNABLE_ULONG_FETCH("net.inet.pim.squelch_wholepkt", - &pim_squelch_wholepkt); - pim_encap_cookie = ip_encap_attach(&ipv4_encap_cfg, NULL, M_WAITOK); ip_mcast_src = X_ip_mcast_src;
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